تأثير الرش بالسليكون في التحمل الملحي لصنفين من الطماطة (Lycopersicon esculentum Mill.)‎ في تحسين مؤشرات الحاصل

Abstract EN

The study was conducted during two growing seasons (2015 and 2016) inaprivate farm in Kufa-Najaf, with the objective of improving salinity tolerance of tomato (Lycopersicon esculentum Mill.) with exogenous application of silicon.

The study included 40 treatments, which were four levels of irrigation water salinity (2.5, 5.0, 7.5 and 10 ds.m-1) , two tomato cultivars (Aulla and Majid) and five concentration of silicon (0 , 50 , 100 , 150 and 200 mg l-1).

Asplit-split plot design was used in afactorial experiment with three factors and three replicates.

The results were analyzed using analysis of variance and treatment means were compared using the least significant differences (LSD) at 0.05.

The effect of the above treatment were studied on yield components, represented by number of fruit, mean fruit weight, yield per plant, early yield and total yield for both growing seasons., Irrigation water salinity at 7.5 and 10.0 ds m-1 caused a significant decrease in yield parameters for both growing seasons.

Exogenous treatment with silicon caused a significant increase in all yield parameters, for both growing seasons.

As for the effect of cultivars, the cultivar Majid was significantly superior in total marketable yield as much as (19.65, 20.66 and %), as compared with cv.

Aulla for both growing seasons respectively..

The interactions among treatments, were significant in increasing flowering growth parameters, as well as yield and its components.

Cultivar Majid irrigated with water salinity at 2.5 ds.m-1 and treatment with silcon at 150 mg.l-1 gave the highest total marketable yield (13.90, 11.40) ton.

donum-1, while cultivar Aulla irrigated with water salinity at 10 ds.m-1 and non treatment gave the lowest total marketable yield (3.15, 3.11) ton.

donum-1for both growing seasons respectively.